var fileTransfer = new FileTransfer();
var uri = encodeURI("http://www.stud.hig.no/~090370/nature/file_download_txt.php");

fileTransfer.download(
    uri,
    filePath,
    function(entry) {
        console.log("download complete: " + entry.fullPath);
    },
    function(error) {
        console.log("download error source " + error.source);
        console.log("download error target " + error.target);
        console.log("upload error code" + error.code);
    }
);